#9220: type roles for unboxed arrays -------------------------------------+------------------------------------- Reporter: rwbarton | Owner: goldfire Type: bug | Status: new Priority: normal | Milestone: 7.10.1 Component: Core | Version: 7.8.1 Libraries | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: | Related Tickets: None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by goldfire): * cc: core-libraries-committee@… (added) Comment: Working on this now... just clarifying that the fix is a breaking change, in that a previous use of GND will no longer work. It happened that this GND appears in the testsuite, test `roles/should_compile/RolesIArray`: {{{ newtype N = MkN Word64 deriving (IArray UArray) }}} With changing the roles on `UArray`, this no longer works. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9220#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler